Fresh 1.4 Install: EGO OSError

Question

I performed a fresh 1.4 base install on my trusty ThinkPad last night. Even though this is only my second attempt to install Funtoo, everything went perfectly smoothly. I called it a night, right after the first reboot. I haven't, as yet, created a regular user account, so I am logging into the machine as root.
The first thing on today's agenda was to configure the machine's flavor and mix-ins and that's where things immediately went wrong:

Based on the permissions, I'm not sure why EGO should be encountering difficulties, but: when opening the file "parent" in nano, there is a message in the lower center of the window, stating that [ File 'parent' is unwritable ]

As I mentioned at the beginning, I'm a complete Funtoo noob, so I am having some difficulty locating EGO diagnostic information. I see a few assorted EGO errors documented here in the forum, but none appear to be related to my dilemma. Should I skip ahead and install logging capabilities, or is there a better approach? I'd be grateful if someone could nudge me in the right direction.

An OSError can be a lot of things. Unless you can find more information, there isn't much to say.

Thanks very much for responding, jhan, but I've sorted this out. When I looked earlier, I completely missed a dmesg entry having to do with mounting disk partitions, which ultimately led me to the solution.

I have a pre-existing Solus installation on this machine. By way of preparation, I went ahead and used GParted to create my Funtoo partitions in some unused disk space. I also added a data partition at this time, which could be shared between Solus and Funtoo. At the conclusion of the partitioning and formatting, I ran $ sudo blkid from Solus and copy/pasted the output, so that I would have the UUID of the data partition (and indeed all of the disk partitions), when installing Funtoo.

When I edited Funtoo's fstab file, I used some of Solus' partition mounting conventions, such as errors=remount-ro. And indeed, I had an error. So, it wasn't just the /etc/portage/make.profile/parent file that was unwritable, but the entire disk! Only ... parent was the first and only file that I tried to edit (through EPRO) today.

So, long story short, tidying up my fstab file has allowed me to set the flavor for Funtoo.